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Taser

A taser is an electrical, less-lethal weapon which gives out an electrical current that causes muscle dysfunction and temporarily weakens a person.

Taser can be used only by highly-trained, authorised Thames Valley Police firearms officers. It can only be used when and where these officers are authorised to draw weapons. Taser is not used by unarmed police officers.

How does it work?

The taser is laser-sighted and uses cartridges that are attached to the front. The cartridges let out a pair of barbs. These attach to the skin or clothing and deliver an electrical charge. The device’s output is 26 watts, which delivers a charge of 50,000 volts.

What does it do to someone?

The charge causes a loss of some voluntary muscle control. This results in the person falling to the ground or ‘freezing’ on the spot.

What happens afterwards?

The effects are instant and only last for as long as the charge is applied.

Where else is taser used?

It has been widely used in USA and Canada for more than 20 years. There have been no reports of fatalities that can be directly attributed to taser. Experience shows that taser has rarely caused even secondary injuries.

Has it been medically assessed?

Taser technology is compatible with Human Rights legislation, and has been thoroughly tested and assessed by the Police Scientific Development Branch for functionality and medical consequences.

The Defence Science and Technology Laboratory has undertaken a programme of medical assessment. The Defence Scientific Advisory Council’s Sub-Committee on the Medical Implications of Less Lethal Technologies (an independent body) has considered the results of these assessments.